Decarbonizer for coke ovens



April 22, 1941. M. D. CURRAN bECARBONIZER FOR COKE OVENS 2 Sheets-Sheet1 Filed Aug. 8, 1938 INVENTOR. MQWZC D. Caz/7227 CRN Y5.

, April 22, 1941. M. D. CURRAN DECARBONIZER FOR COKE OVENS 2 sheets sheet 2 Filed Au a, 1955 Patented Apr. 22,

UNITED" STATE-sf PATENT OFFICE.

' nacanaonrzifz'zt con: ovnrvs Maurice D. Curran, Glendale, Ma,

y Tar- & Petroleum Process Company,'Chicago,

111., a corporation of Illinois Application August 3, 193a, Serlal No.223,592

v1 Claim. (01. 202-241) The present invention relates to improvements indecarbonizers for coke ovens.

The present invention has particular reference to the flat type of ovenin which the coking cham her is relatively shallow compared to thelength and the width thereof. This type of oven is known commonly in theart as the Knowles type of oven and is illustrated in the Knowles andMcIntyre Patent No. 1,635,280. In the operation of such an oven the coalwhich is to be coked is charged into the oven and leveled off, and,after the coking operation has been carried to the point desired, thecharge is pushed out of the oven.

leveler ram assembly, the pusher ram assembly, and certain mechanismwhich may be utilized for connecting the pusher ram assembly to ordisconnecting it from the leveler ram assembly; and

Figure 6 is a fragmentary view illustrating a very simple meansforconnecting the pusher ram. assembly to or disconnecting it-from theleveler ram assembly.

The numeral Ill indicates as a whole an oven ofthe Knowles type. Saidoven has projectingfrom the two ends thereof the platforms ll-l I,

' which have their upper surfaces at'substantially Duringthe cokingoperation there is a tendency toward the gradual accumulation of hardcarbon, which adheres to the oven-floor. This carbon is insulating inits effect and therefore objectionable. In the absence of means forremoving this the level of the floor of the oven. The numeral l2indicates as a whole a pusher and leveler assembly mounted on wheelslie-l3 andadapted to 7 travel along the tracks i l-i 4, whereby thepusher carbon it is necessary to shut the oven down periodically and toremove the carbon either by combustion or by chipping. Though thepresent invention is particularly applicable to ovens of the Knowlestype and has been illustrated in connection with that type of oven, itwill be understood as the description proceeds that'the invention is ofbroader application.

An object of the present invention isto provide means for removing theaccumulation of carbon tending to adhere to the floor or other wall of acoking oven during each coking operation, this removal beingaccomplished during the step of pushing the charge from the oven.

A further object is to provide mechanism for burning out suchaccumulated carbonwhich in its operation requires no shutting down ofthe oven and no interruptionsito the normal opera tion of the oven.

and leveler assembly may travel along a battery of ovens and operateupon the various ovens thereof in succession. Said pusher and leveler assembly is provided with a leveler ram, indicated by the numeral l5,which leveler ram includes a A further object is to provide improvedmeans i 4 for removing the accumulation of carbon from a coking oven,which means are well adapted to meet the needs of commercial operation.I

Further objects will appear as the descrip ion proceeds.

Referring to the drawings-- Figure "1 is .a view, partly in section,showing a commercial adaptation-of the present invention;

Figure 2 is a view sliowing'part of the mech- 'anism illustrated inFigure 1 but on a larger scale and better illustrating thepresentinvention; I

Figure 3 is a detail plan view showing certain features of the presentinvention; I

Figure 4 is a sectional view taken along the plane indicated by thearrows 4-1 of Figure 3;

Figure 5 is a perspective view illustrating the the mechanism embodyingward extremity of the with the upwardly extending portion 21 adaptedpair of longitudinal members I. carrying at their forward extremity theleveler head II. The. moved longitudinally, that 4 is, into and out ofthe oven III, by means of a leveler ram I! may be cable I! attached tosaid leveler ram and wound around a pair of sheaves: iQ-IQ locatedadJacent to the. ends ofthe pusher and leveler assembly l2. Said cable[8 may be operated by a sheave 20 driven from a pulley 2|, which may bedriven by any preferred motive mechanism". Associated with the levelerram i5 is the pusher ram 22, in-

, cluding the longitudinally extending channels -22a-22a andprovided atits forward extremity with the pusher head 23.- The leveler. head i1 isprovided with the feet 24 a platform 25 forming'part of the pusher andleveler assembly l2 and upon the platform II and the oven floor of theoven l0. Figures 1 and 2 show'the leveler ram l5 and the pusher ram 22in'their fully retracted positions. In this posi tion the forwardextremity of the pusher ram 22 rides upon the platform 25. The levelerram I! may be supported and'=guided by rollers, not

shown. said pusher ram 22 is adapted to be connected to and disconnectedfrom the |5 through mechanism which need leveler ram not be describedindetail herein inasmuch as the specific mechanism does not constitute thepresent invention. It may be explained briefly that the rearpusher ram22 is provided to hook over a portion of the leveler ram l5,

' whereby said pusher ram 22 will be reciprocated longitudinally with.the reciprocations of the adapted to ride upon I pusher ram 15'. Amanually operable lever 28 is provided for raising said rear extremityof the pusher ram 22 when it is desired to connect said pusher ram 22 toor disconnect said pusher ram from the leveler ram l5. Said lever, 29 isillustrated in its lowered position, to which position it is moved afterit has been operated to raise the rear extremity of the pusher ram 22into position to interlock with the leveler ram l5.

Figure 5 illustrates in a perspective view mech-" anism which may beutilized for lifting the rear extremity of the pusher bar assemblywhereby it may be connected to the leveler bar assembly. Disposed uponthe inner "faces of the longitudinal members l9-i9 are the cam plates290-2011, each provided with the cam slot 291:. Said cam slots areadapted to cooperate with transversely extending pins 290 extendinglaterally from the channels 22a-22a or the pusher ram 22. The rearextremity of the pusher ram 22 may be raised or lowered by means of themanually operable lever 20 whereby the laterally extending pins 290-290may be engaged in the cam slots 2811-2911 or may be disengaged from saidcam slots 29b-29b.

Figure 6 illustrates a very simple construction in which pins 29d-29dmay be utilized to con-' nect each channel 22a with the correspondinglongitudinal member l9 by means of its engagement with cooperating holes28e-29e in said members It and 22a.

United to the pusher ram 22 a short distance in the rear of the pusherhead 29 is the burner pipe 29. Said burner comprises a pipe mounted inparallel relationship with the pusher head 29. Said pipe 29 is providedwith a plurality of orifices90-30 disposed in a. line adjacent to thebottom of said pipe 29, whereby air for combustion purposes may bedelivered against the floor of the oven to burn oi! carbon which hascollected upon said floor. Said pipe 29 is secured to the channels22a-22il, which form part of the pusher ram 22. As shown in Figure 4,the lower sides of the channel members 220-220. are set into cutoutportions of the pipe 29, welding material, indicated by the numeral 9 I,being disposed in place to prevent leakage from the pipe 20through saidcut-out portions. The ends of the pipes 29-29 will, of course, beclosed. Connected to the mid region of said pipe 92, which extendsrearwardly from said pipe 29. Said conduit 92 will be supported from thepusher ram 22 by any preferred means. Said conduit 92 extends to aregion spaced a short distance in therear of the rear extremity of thepusher ram 22, joint 99, which flexible joint is connected to theelongated conduit 94, which extends back to the region adjacent to therear ot the pusher and leveler assembly l2. The rear extremity of saidconduit 24 is connected to the flexible conduit 95, which at its otherextremity is connected to the source of compressed air 98.

Rotatably carriedby the leveler ram 15 is the longitudinally extendingrod 91 adapted to be and at that region is connected to a flexiblerocked by the lever 99. Said longitudinally extending rod 91 is providedwith a plurality of hook members 99 spaced therealong adapted to pick upthe elongated conduit 94 and carry it along with the leveler ram 15. Aplurality of brackets 40-40 are provided upon which the elongatedconduit 94 lies when said elongated conduit 94 and the conduit 92 aredisconnected from the leveler ram l5.

The mode of operatic of the above described embodiment of the presentinvention is substantially as follows:

When it is desired leveling on the charge within the oven 10, the rearextremity 21 of the pusher ram 92 will be released irom the leveler raml5 and the conduit will lie upon the brackets 40-40. At this time theleveler ram may be operated independently of the pusher ram 22 and willperform its lunction 01 leveling off the charge within the oven 10. Whenthe coking operation has been carried on within the oven l0 to the pointdesired and it is desired to push the charge from the oven,

the lever 20 will be operatedto raise the rear extremity 21 of thepusher ram 22 up into position to interlock with the leveler ram l5.Also, the

' lever 99 will be operated to turn the longitudinally 29 is the airsupply conduit extending rod 91 to cause the hooks 99-99 to lift theelongated conduit 94 from 'the brackets 40-40. Operation of the sheave20 will cause longitudlnal movement of the leveler ram [5 and the pusherram 22 as a unit, carrying the conduits 92 and 94 along therewith. Airunder pressure will be admitted to the flexible conduit 95, and said airwill pass by way of the conduits 94 and 92 to the burner pipe 29 to bedelivered through the orifices -30. Inasmuch as the oven is at hightemperature, the delivery of the air through the orifices 90-90 willcause the combustion of any layer of carbon adhering to the floor of thefurnace behind the pusher head 29. Accordingly, any layer of carbontending to remain behind the pusher head will be burned oil in the sameoperation which results in the pushing of the charge from the oven.Furthermore, particles on the floor of the oven not consumed by suchcombustion will be swept from said floor by the flow of air from saidorifices 90-90.

Though a preferred embodiment of themesent invention has been describedin detail, many modifications will occur to those skilled in the art. Itis intended to cover all such'modiflcations that fall within the scopeoi the appended.

to use the leveler ram IS in

